Home / 5,565.40-7,680.54-3,207.76

Finding the Fourth Proportional to 5,565.40, 7,680.54 and 3,207.76

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Solution

The fourth proportional to 5,565.40, 7,680.54 and 3,207.76 is: 4,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.40 : 7,680.54 = 3,207.76 : x
  2. Step 2: Convert to fraction form
    5,565.40/7,680.54 = 3,207.76/x
  3. Step 3: Cross multiply
    5,565.40x = 7,680.54 × 3,207.76
  4. Step 4: Simplify right side
    5,565.40x = 24,637,328.99
  5. Step 5: Solve for x
    x = 24,637,328.99/5,565.40
  6. Step 6: Final answer
    x = 4,426.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.